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How do I create a variable number of variables?

... # prints bar, because indices start at 0 lst.append('potatoes') # lst is now ['foo', 'bar', 'baz', 'potatoes'] For ordered sequences, lists are more convenient than dicts with integer keys, because lists support iteration in index order, slicing, append, and other operations that would require a...
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How the single threaded non blocking IO model works in Node.js

...e it sends back the results to callback which sends the response. Node.js knows to execute callback when fetch finishes. In my opinion, because it's a single thread model, there is no way to switch from one request to another. Actually the node server does exactly that for you all the time. To mak...
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What does MVW stand for?

...but over time and thanks to many refactorings and api improvements, it's now closer to MVVM – the $scope object could be considered the ViewModel that is being decorated by a function that we call a Controller. Being able to categorize a framework and put it into one of the MV* bucket...
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Parsing HTML using Python

... Just an update: as of BeautifulSoup 4, the import line is now from bs4 import BeautifulSoup – Bailey Parker Mar 3 '14 at 6:25 2 ...
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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting

...atforms, do not include the weights even if it provides better results. Now, if you can use scipy, you could use scipy.optimize.curve_fit to fit any model without transformations. For y = A + B log x the result is the same as the transformation method: >>> x = numpy.array([1, 7, 20, 50...
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TimePicker Dialog from clicking EditText

...d think I might of tried that before because I got this message before. Is now showing an error everything after 'new TimePickerDialog' and before 'mTimePicker.setTitle'. The error is 'Cannot resolve constructor 'TimePickerDialog(com.appname.classname, android.app.TimePickerDialog.OnTimeSetListener,...
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How to find the duration of difference between two dates in java?

....com/javase/tutorial/datetime/iso/period.html LocalDate today = LocalDate.now(); LocalDate birthday = LocalDate.of(1960, Month.JANUARY, 1); Period p = Period.between(birthday, today); long p2 = ChronoUnit.DAYS.between(birthday, today); System.out.println("You are " + p.getYears() + " years, " + p...
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Strings are objects in Java, so why don't we use 'new' to create them?

... Strings, "Next iteration" would need to be instantiated 10 times, whereas now it will only be instantiated once. share | improve this answer | follow | ...
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Where can I get a list of Ansible pre-defined variables?

...": "virtualbox" }, "changed": false } The current documentation now has a complete chapter listing all Variables and Facts share | improve this answer | follow ...
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Python - 'ascii' codec can't decode byte

... eternally confused. I guess my confusion came from my own problem of not knowing the if the input is a string or unicode string and what encoding it may have. – deinonychusaur Jul 31 '13 at 17:36 ...